Hello and thank you for using HCM. I carefully read your question and I understand your concern I will try to explain you something. RBBB means Right Bundle Branch Block, the same thing that you had when you did angiography. Its just a shorting for the same nomenclature. This is an electric, electrocardiographic variation. It shows the way of your electric rhythm conduction through the heart. This electrical variation of conduction system might happen in healthy people and other times is associated with other pathology s. The fact that you already had it when you have done the angiography and you have discussed this with your cardiologist means that it is quite normal. It is nothing to worry about as your doctors has previously told you. Hope Ia was helpful. Best regards.